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05-04-2021, 12:59 PM | #1 |
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Location: Troutman, NC
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Anyone run a Lion Head
I was just visiting a fell Club member and he had a car with a Lion Head on it that ran amazing. I could not believe how hard the car would pull and it seems to be a very good addition for people who wish to go over 40 mph. I could be wrong but the Lion Head seams to be the best thing since canned beer and sliced bread.
Comments welcome as I was considering getting a 6.1 head before seeing and experiencing this Engineering Marvel. With this much power my only concern is knocking out the bearings. Thanks Ron |
05-04-2021, 01:07 PM | #2 |
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Re: Anyone run a Lion Head
I've never heard of a "Lion head" head, but of course I'm just a young man (65) so I still don't know everything yet.
Maybe some of the old timers can enlighten us on this. PS: I'm running a 6.1 head
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05-04-2021, 01:15 PM | #3 |
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Re: Anyone run a Lion Head
Can you even get a Lion head these days?
(The Lion speed head is distinguished by its 6.5:1 compression, heart-shaped combustion chamber, and repositioning of the spark plugs directly over the piston at a 45° angle.) |
05-04-2021, 01:21 PM | #4 |
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Re: Anyone run a Lion Head
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05-04-2021, 01:45 PM | #5 |
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Re: Anyone run a Lion Head
Dual-plug is a whole other animal. I will say, be cautious about trying to get The Best Cylinder Head your first time out – you can go down a lot of rabbit holes choosing between products that are very similar to each other.
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05-04-2021, 01:53 PM | #6 | |
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Re: Anyone run a Lion Head
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Quote:
Ron |
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05-04-2021, 01:58 PM | #7 |
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Re: Anyone run a Lion Head
It is sold by Secrets of Speed:
https://www.secretsofspeed.com/rocket-428-images Looks like their next delivery is scheduled for September 2021. David Serrano |
05-04-2021, 02:01 PM | #8 | |
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Re: Anyone run a Lion Head
Quote:
Ron |
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05-04-2021, 02:55 PM | #9 |
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Re: Anyone run a Lion Head
Model A Ron, The combustion chamber shape has as much to do with performance as the compression ratio. The more turbulence the faster the fuel/air will burn which means the pressure is higher. Plus, the design around the valves can lead to better breathing. The dual spark plugs will also mean that the fuel/air will burn faster and it will reduce the tendency to knock, so more advanced ignition timing can be used. Knocking happens a lot at the corners of the combustion chamber when the pressure is built up by the fuel/air combustion and a little pocket of unburnt fuel/air is trapped. The dual plugs means that the flame front reaches the unburnt air/fuel before the pressure has built up to where it explodes on its own.
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A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
05-04-2021, 03:04 PM | #10 |
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Re: Anyone run a Lion Head
I had a Lion head from the first batch sold.
It was a real runner. '30 Tudor with a .125 over engine, B carb & intake and an Aires muffler. Out on the highway I had to pay close attention to keep it under 60 mph.
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05-04-2021, 03:31 PM | #11 | |
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Re: Anyone run a Lion Head
Quote:
Thanks Ron Last edited by Model A Ron; 05-04-2021 at 04:14 PM. |
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05-04-2021, 04:30 PM | #12 |
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Re: Anyone run a Lion Head
Check out this link for dyno results on the Lion Head. Dennis has done a lot of testing on all of the heads from Charlie Yapp at Secrets of Speed. Dennis does OUTSTANDING engine work. He built my engine with a Riley 2 Port head that puts up 86 HP.
http://modelaparts.net/ |
05-04-2021, 04:44 PM | #13 |
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Re: Anyone run a Lion Head
Original Winfield red head,7 to 1..provide it enough fuel and cam it (late B high lift works for me) along with a mechanical advance distributor and other goodies, she'll pull your hat clean off your head.
Engine performance is a 'sum of all parts' endeavor.. sure, just raising compression alone is better than stock, but tossing all the other stuff to make it breathe better all the way through is addictive.. |
05-04-2021, 05:09 PM | #14 | |
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Re: Anyone run a Lion Head
Quote:
If it were me, I'd go with a reproduction iron Winfield head that Tod in Ohio makes. He's on the Fordbarn and occasionally posts updates on his head and block production runs. |
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05-04-2021, 05:24 PM | #15 | |
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Location: South California
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Re: Anyone run a Lion Head
Quote:
I owned /used a LH 111 for years. GOOD head. I declined first and second iteration. Read the past threads/reports ! Why did I sell it ? For more $ than paid.... after years of running on a hot B. Also got better head. |
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05-04-2021, 06:13 PM | #16 |
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Re: Anyone run a Lion Head
I have a Lion Head III in the box. Will sell for $350. 904-731-0367 Eastern Time.
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05-04-2021, 06:19 PM | #17 |
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Re: Anyone run a Lion Head
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05-04-2021, 06:29 PM | #18 |
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Re: Anyone run a Lion Head
Read a very controversial previous Ford Barn post on the subject.
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05-04-2021, 09:05 PM | #19 |
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Re: Anyone run a Lion Head
Exactly ten years ago tomorrow!
https://www.fordbarn.com/forum/showthread.php?t=36213 Ron, have you sampled the Buttermore "crowfoot" 7:1 yet? That's the one I hear most frequently mentioned as a rival to the Lion III. |
05-04-2021, 10:23 PM | #20 | |
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Re: Anyone run a Lion Head
Quote:
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